<template>
  <div>
   <!-- 面包屑导航 -->
   <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
   </el-breadcrumb>
   <!-- 卡片区域 -->
   <el-card>
       <!-- 搜索与添加区域 -->
     <el-row :gutter="20">
         <el-col :span="8">
             <!-- 为输入框双向绑定数据 -->
           <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
             <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
           </el-input>
         </el-col>
         <el-col :span="4">
             <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
         </el-col>
     </el-row>
     <!-- 用户表格区 -->
     <el-table :data="userlist" border stripe>
       <el-table-column type="index" label="#"></el-table-column>
       <el-table-column label="姓名" prop="username"></el-table-column>
       <el-table-column label="邮箱" prop="email"></el-table-column>
       <el-table-column label="电话" prop="mobile"></el-table-column>
       <el-table-column label="角色" prop="role_name"></el-table-column>
       <el-table-column label="状态">
         <template slot-scope="scope">
             <!-- scope.row: 获取到整行数据的值 -->
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
         </template>
       </el-table-column>
       <el-table-column label="操作">
         <template slot-scope="scope">
           <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
           <el-button type="danger" icon="el-icon-delete" size="mini"></el-button>
           <el-tooltip effect="dark" content="分配角色" placement="top-start" :enterable="false">
             <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
          </el-tooltip>
         </template>
       </el-table-column>
     </el-table>
     <!-- 分页区域 -->
     <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total">
     </el-pagination>
     <!-- 分配角色对话框 -->
     <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
       <div>
         <p>当前的用户: {{userInfo.username}}</p>
         <p>当前的角色: {{userInfo.role_name}}</p>
         <p>
            <el-select v-model="seletedRoleId" placeholder="请选择">
              <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
              </el-option>
            </el-select>
         </p>
       </div>
       <span slot="footer" class="dialog-footer">
       <el-button @click="setRoleDialogVisible = false">取 消</el-button>
       <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
       </span>
     </el-dialog>
     <!-- 添加用户对话框 -->
     <el-dialog title="提示" :visible.sync="addDialogVisible" width="50%">
        <!-- 内容主体区域 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addDialogVisible = false">确 定</el-button>
       </span>
    </el-dialog>
   </el-card>
  </div>
</template>

<script>
export default {
  data () {
      // 验证邮箱的规则
      var checkEmail = (rule, value, cb) => {
          //验证邮箱的正则表达式
          const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

          if (regEmail.test(value)) {
              //合法的邮箱
              return cb()
          }

          return cb(new Error('请输入合法的邮箱'))
      }
      // 验证手机的规则
      var checkMobile = (rule, value, cb) => {
          //验证邮箱的正则表达式
          const regMobile =  /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

          if (regMobile.test(value)) {
              //合法的手机号
              return cb()
          }

          return cb(new Error('请输入合法的手机号'))
      }
      return {
        // 获取用户列表的参数对象
        queryInfo: {
            query: '',
            // 当前页数
            pagenum: 1,
            // 当前每页显示多少条数据
            pagesize: 2
        },
        userlist: [],
        total: 0,
        // 控制添加用户对话框的显示与隐藏
        addDialogVisible: false,
        // 添加用户的表单数据
        addForm: {
            username: '',
            password: '',
            email: '',
            mobile: ''
        },
        // 添加表单验证规则对象
        addFormRules: {
            username: [
              { required: true, message: '请输入用户名', trigger: 'blur' }, 
              { min: 3, max: 10, message: '用户名长度在3-10个字符之间', trigger: 'blur'}
            ],
            password: [
              { required: true, message: '请输入密码', trigger: 'blur' }, 
              { min: 6, max: 15, message: '用户名长度在6-15个字符之间', trigger: 'blur'}
            ],
            email: [
              { required: true, message: '请输入邮箱', trigger: 'blur' },
              { validator: checkEmail, trigger: 'blur' }
            ],
            mobile: [
              { required: true, message: '请输入手机号', trigger: 'blur' },
              { validator: checkMobile, trigger: 'blur' }
            ]
        },
        // 控制分配角色对话框的显示与隐藏
        setRoleDialogVisible: false,
        // 即将分配角色的用户信息
        userInfo:{},
        // 所有角色的数据列表
        rolesList: [],
        // 已选中的id值
        seletedRoleId: ''
      }
  },
  created () {
    this.getUserList()
  },
  methods: {
      async getUserList () {
          const { data: res } = await this.$http.get('users', { params: this.queryInfo })
        //   console.log(res);
          if (res.meta.status !== 200) {
            return this.$message.error('获取用户列表失败！')
          } 
          this.userlist = res.data.users
          this.total = res.data.total
      },
      // 监听pagesize
      handleSizeChange (newSize) {
          console.log(newSize);
          // 重新为pagesize赋值
          this.queryInfo.pagesize = newSize;
          // 重新请求数据
          this.getUserList()
      },
      // 监听pagenum
      handleCurrentChange (newPage) {
          console.log(newPage);
          // 重新为pagenum赋值
          this.queryInfo.pagenum = newPage;
          // 重新请求数据
          this.getUserList()
      },
      // 监听操作状态按钮
      async userStateChanged (userinfo) {
          console.log(userinfo);
          // 发送修改请求
          const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
          if (res.meta.status !== 200) {
              // 强制恢复按钮状态
              userinfo.mg_state = !userinfo.mg_state
              return this.$message.error('更新用户状态失败')
          }
          return this.$message.success('更新用户状态成功')
      },
      // 展示分配角色的对话框
      async setRole (userInfo) {
        this.setRoleDialogVisible = true
        this.userInfo = userInfo
        const { data: res } = await this.$http.get('/roles')
        if (res.meta.status !== 200) {
          return this.$message.error('获取角色列表失败')
        }
        this.rolesList = res.data
        this.setRoleDialogVisible = true
      },
      // 点击按钮 分配角色
      async saveRoleInfo () {
        if (!this.seletedRoleId) {
          return this.$message.error('请选择要分配的角色')
        }
        const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.seletedRoleId})
        if  (res.meta.status !== 200) {
          return this.$message.error('更新角色失败')
        }
        this.$message.success('更新角色成功')
        this.getUserList()
        this.setRoleDialogVisible = false
      },
      // 监听对话框
      setRoleDialogClosed () {
        this.seletedRoleId = ''
        this.userInfo = {}
      }
  }
}
</script>

<style lang="less" scoped>
</style>